Question

1. what is the name of element, for this symbol Fe, the atomic number, mass number, protons,neutrons, electrons 2. what is the name of element, symbol, atomic number, when mass number is 27,electrons 13, complete for protons, neutrons. 3. what is the name of elements, symbols, atomic number, mass number, when protons is 19, neutrons 20, find the electrons. 4. what is the symbol for Bromine, what is atomic number, protons, neutrons, electrons when the mass number is 80. 5. what is the element for Au, the atomic number, protons, neutrons, electrons, when mass number is 197?

Answer 1

O symbol Fe Name iron atomic number - 26 protons = 26 electrons = 26 mass number=56 mass numbers protons + Neutrons Neutrons = mass number protons. 56-26 256-26=30 Mass number = 27 electrons = 13 Pichs - 13 atomic number 13 neutrons = mass numbera protons 27-13= 14 symbol Al Name = Aluminium protons = 19 neutrons 220 wmber = protonst neutrons 19+20=39 electrons 219 atomic number = 19 symbol =k home (Potassium) Name : Bromine symbol: Br mass number = 80 pretons = 35 electrons = 351 atomic number = 35 neutrons = 80-35=45

6 Aurum) symbol. Au name = Gold ( Latin name : Mass numbear = 197 6 emic yumbe9 - 11 protons = 29 electrons = 29 atomic number=29 neutrons = 197-29 = 118 (Neutral atom) 2 x - Element 2 atomic number a protons a electrons no. of A: Mass number a no- of protons neutrons Rateplease